TY - GEN
T1 - Multi-sector windings for bearing relief e-machine
T2 - 2020 International Conference on Electrical Machines, ICEM 2020
AU - Mahmoud, Hanafy
AU - Valente, Giorgio
AU - Degano, Michele
AU - Nardo, Mauro Di
AU - Gerada, Chris
AU - James, Barry
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/8/23
Y1 - 2020/8/23
N2 - The key driving elements for any electrical machine (EM) used in aerospace and other safety critical applications are the reliability, mass, volume, and efficiency. To reduce mass/volume while satisfying the power required, the option is to increase the EM speed. The possible failure of the mechanical bearings at high speed, the higher bearing losses, and the excessive rotor displacement at high speed are some of the design challenges encountered when the speed increases. The main objectives of applying this MSBRM concept is to achieve the magnetic levitation of the rotor to (a) overcome the bearing reliability issues, as well as eliminating the bearing friction, (b) apply online radial force control on the rotor to mitigate the rotor displacement/whirling, and (c) reducing requirements for maintenance and monitoring. In this paper, the multi-sector windings bearing relief electric machine (MSBRM) concept is applied to high torque density permanent magnet EM. The electromagnetic characterization and the radial force control concept of the highly saturated EM has been studied deeply in this paper.
AB - The key driving elements for any electrical machine (EM) used in aerospace and other safety critical applications are the reliability, mass, volume, and efficiency. To reduce mass/volume while satisfying the power required, the option is to increase the EM speed. The possible failure of the mechanical bearings at high speed, the higher bearing losses, and the excessive rotor displacement at high speed are some of the design challenges encountered when the speed increases. The main objectives of applying this MSBRM concept is to achieve the magnetic levitation of the rotor to (a) overcome the bearing reliability issues, as well as eliminating the bearing friction, (b) apply online radial force control on the rotor to mitigate the rotor displacement/whirling, and (c) reducing requirements for maintenance and monitoring. In this paper, the multi-sector windings bearing relief electric machine (MSBRM) concept is applied to high torque density permanent magnet EM. The electromagnetic characterization and the radial force control concept of the highly saturated EM has been studied deeply in this paper.
KW - Analytical Analyses
KW - Bearing Relief Electric Machines
KW - Finite Element Analysis
KW - Multi-Sector Windings
KW - Permanent Magnet Machine
KW - Radial Force Control
KW - Rotor Dynamics
KW - Synchronous Machine
UR - http://www.scopus.com/inward/record.url?scp=85098660091&partnerID=8YFLogxK
U2 - 10.1109/ICEM49940.2020.9270761
DO - 10.1109/ICEM49940.2020.9270761
M3 - Conference contribution
AN - SCOPUS:85098660091
T3 - Proceedings - 2020 International Conference on Electrical Machines, ICEM 2020
SP - 246
EP - 252
BT - Proceedings - 2020 International Conference on Electrical Machines, ICEM 2020
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 23 August 2020 through 26 August 2020
ER -